I liked Sky's character, although I wasn't blown over by the kid's acting (certainly not in the same league as Caitlin Blackwood). Her origin has obvious similarities to Luke's, but whereas Luke was always rather too polite and obedient for his own good, Sky looks like being a more normal kid. Well, normal for a kid who's become 12 in a day, that is.

Besides this, I found it an enjoyable story, but not one of the more mind-blowing ones, so I gave it a four.

I went with a four. It was a good intro to the season and it was generally just good to have it back on the air. There was, for me at least, a bit of a feeling of sadness knowing it was the last season, but it was good to watch, the new character is ok and while it wasn't as good as the opener to series 4, it was still a strong story.